Order Acrochaetiales

Family Acrochaetiaсеае Fritsch ex W. R. Taylor

Genus Acrochaetium Nägeli in Nägeli & Cramer

• Acrochaetium secundatum (Lyngbye) Papenfuss (=Kylinia secundata (Lyngbye) Papenfuss) – on Zostera, rare, littoral, Kislaya inlet; on Laminaria stipes, common, sublittoral, Velikaya Salma.
• Acrochaetium virgatulum (Harvey) Batters (=Kylinia virgatula (Harvey) Papenfuss — on Odonthalia dentata, common, littoral, sublittoral, Velikaya Salma.

Genus Audouinella Bory de Saint-Vincent

• Audouinella hermannii (Roth) Duby – marine, littoral (Блинова, 1962: as Chantransia violacea Kützing).

Genus Rhodochorton Nägeli

• Rhodochorton purpureum (Lightfoot) Rosenvinge – marine, epiphyte on Phycodrys rossica (Успенская, 1963). Littoral, Eremeevsky porog rapids (Возжинская, 1967).

Genus Grania

• Grania efflorescens (J. Agardh) Kylin (=Audouinella efflorescens (J. Ag.) Papenf., Acrochaetium efflorescens (J. Agardh) Nägeli)— on Ascophyllum nodosum, sporadic, littoral, Malyi Eremeevsky Island (Confirmed by: Михайлова, 2010)

rus:Порядок Acrochaetiales